Stripe Rust of Wheat Map

Stripe rust (also known as yellow rust) is caused by the pathogen Puccinia striiformis f. sp. tritici. It is a fungal disease that affects wheat throughout much of the world. Stripe rust can occur anywhere in the U.S. and Canada, causing substantial yield losses when conditions are favorable. Initially, symptoms are yellowish flecks on leaves. On susceptible varieties, pustules containing yellow-orange spores erupt from leaves.

Note that the map may display “gaps” where active monitoring and scouting for stripe rust may not be occurring. If stripe rust has been identified in a county/parish, this should encourage you to scout your fields for this disease. Confirmed stripe rust does not necessarily mean a fungicide application is needed in that area. For more information about management of stripe rust, please read An Overview of Stripe Rust of Wheat.